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Cu crystalizes in body center cubic unit cell with an length of 312 pm. Determine the density of Cu in g/cm3. (1pm=10^-12m=10^-10m)
Draw Fischer projections for the two D-aldoheptoses whose stereochemistry at C3, C4, C5, and C6 is the same as that of D-idose at C2, C3, C4, and C5
Frank and Oswalt report a molar absorptiity of 4700 L mol ^-1 cm ^-1 for the thiocyanatoiron (III) ion.
a zero-order reaction has a constant rate of 3.00times10-4ms . if after 65.0 seconds the concentration has dropped to
a voltaic cell is created with one half-cell consisting of a copper electrode immersed in 1.0 m cuso4 solution and the
Lewis Structure and state which of the given compounds are isomers - There are three compounds are given as I. pentane , II. 2-methylbutane , III. 2,3-dimethylbutane , IV. 2,2-dimethylpropane V.
the concentration of cholesterol in the blood serum of a normal adult is approx 200mgdl. how many grams of cholesterol
Calculate the heats of combustion for the following reactions from the standard enthalpies of formation listed in the text- (a) 2H2(g) + O2 (g)--> 2H2O (l). (b) 2C2H2 (g) + 5O2 (g) --> 4CO2 (g) + 2H2O (l).
why does one begin a column elution with non polar solvents and progress to more and more polar solvents
Calculate Qsp for calcium fluoride (Ksp=3.9x10^-11) when 195.0 mL of a 0.00780 M solution of Ca(NO3)2 is added to 175.0 mL of a 0.00740 M solution of KF
An oxide of phosphorus is 43.7% P, is 56.3% O, and has a molecular weight of 284 g. What is its molecular formula
what is the hydrogen ion concetration of a solution that has a pH of 4.7
what is the hydrogen ion concentration of this solution? What volume of .250 M KCl will completely react with 50.0 mL OF .115 m Pb(NO3)2?
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